<u>Answer</u>: an all or none response
According to the all-or-none law, it a certain threshol is crossed by a stimulus' strenght, it will cause a response in the nerve cell or muscle fiber. However, the strenght of the response will always be the same and will not vary with different stimulus strengths. The only requirement is for the threshold to be crossed.
Primary succession would most likely occur after a lava flow.
I've read the story back a couple months ago
Actually, there are many archeologists and anthropologists disagree with dr. Thorne's view. Basically, Thorne strongly believes that what many calls Homo erectus was, in fact, Homo sapiens, and that they migrated out of Africa almost 2 million years ago and dispersed throughout Europe and Asia. That would actually be very different from what scientists have always believed about the evolution of the species. That is why many of them are against him)
I hope I helped :)
Answer:
A) the mantle
Explanation:
The mantle is between the crust and the outer core.
Have a lovely rest of your day/night, and good luck with your assignments! ♡
The following is correctly matched with its tissue system is -
4) stele/vascular tissue system
Stele is the the central core/cylinder of the stem and root of a vascular plant, consisting of the xylem and phloem and other supporting tissues. Vascular plants include clubmosses, horsetails, ferns, gymnosperms etc.